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Cheap flight tickets from London Heathrow to San Diego

Compare London Heathrow to San Diego flight deals

Find the cheapest month or even day of the year to fly to San Diego

Book the best San Diego fare with no extra fees

Flight deals from London Heathrow to San Diego

Looking for a cheap last-minute deal or the best return flight from London Heathrow to San Diego? Find the lowest prices on one-way and return tickets right here.
San Diego.RM2,540 per passenger.Departing Wed, 5 Mar, returning Wed, 12 Mar.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Wed, 5 Mar, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Wed, 12 Mar, arriving in London Heathrow.Price includes taxes and charges.From RM2,540, select.
San Diego.RM2,541 per passenger.Departing Mon, 20 Jan, returning Sun, 26 Jan.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 20 Jan, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Sun, 26 Jan, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Fri, 22 Nov, returning Fri, 6 Dec.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Fri, 22 Nov, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Fri, 6 Dec, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Fri, 1 Nov, returning Fri, 8 Nov.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Fri, 1 Nov, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Fri, 8 Nov, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Mon, 13 May, returning Sun, 19 May.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 13 May, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Sun, 19 May, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Thu, 19 Sep, returning Sun, 6 Oct.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 19 Sep, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Sun, 6 Oct, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Thu, 30 Jan, returning Thu, 6 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Thu, 30 Jan, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Thu, 6 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.
San Diego.RM2,541 per passenger.Departing Mon, 3 Feb, returning Tue, 11 Feb.Return flight with British Airways.Outbound direct flight with British Airways departs from London Heathrow on Mon, 3 Feb, arriving in San Diego International.Inbound direct flight with British Airways departs from San Diego International on Tue, 11 Feb, arriving in London Heathrow.Price includes taxes and charges.From RM2,541, select.

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Find the cheapest month to fly from London Heathrow to San Diego

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like London Heathrow to San Diego flights are currently cheapest in March.
May
from RM2,541
Jun
from RM3,036
Jul
from RM3,063
Aug
from RM4,030
Sep
from RM2,541
Oct
from RM2,750
Nov
from RM2,541
Dec
from RM2,545
Jan
from RM2,541
Feb
from RM2,541
Mar
from RM2,540
Apr
Find prices

Direct flights from London Heathrow to San Diego

Alternative London Heathrow to San Diego routes

Looking for the cheapest, fastest or easiest route from London Heathrow to San Diego? You could fly into the following airports instead.

London to San Diego: Flight information

The things to know before you go.
Cheapest flight foundRM2,540
Cheapest month to flyMarch
Average flight time11 hrs, 10 mins
Most popular airlineIberia
Average flights per week46

Finding cheap flights from London Heathrow to San Diego: Frequently asked questions

There are 3 airports in San Diego: San Diego International, El Cajon and McClellan-Palomar.
The best price we found for a return flight from London Heathrow to San Diego is RM2,540. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
11 hours and 10 minutes is the average flight time from London Heathrow to San Diego.
Iberia, American Airlines and British Airways fly direct from London Heathrow to San Diego.
As of May 2024, there are 92 flights per week flying from London Heathrow to San Diego.
The cheapest month to fly from London Heathrow to San Diego is usually March.
If you're flying from London Heathrow Airport, the cheapest airport near San Diego is San Diego International – which is 4.1 km away from the centre of San Diego. We've found flights into this airport from RM2,540.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from London Heathrow Airport to San Diego on Wednesday, 5 March 2025.
Yes – the average flight time is 11 hours and 10 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to San Diego but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to San Diego is around 40 days in advance, so don’t leave your flight to the last minute.
In May, the average temperature is usually around 17°C. August is typically the warmest month in San Diego, when it usually averages around 28°C. You can expect the least rain in June. The coldest month is December, with temperatures averaging 10°C. The rainiest month is February.
Currently, British Airways offers the cheapest flight tickets to San Diego.

How to find cheap flights from London Heathrow to San Diego

Looking for cheap flight tickets from London Heathrow to San Diego? Whether you are aiming to find one-way or return flights, here are a few tips on how to secure the best ticket price and make your journey as smooth as possible.

  • Simply hit 'search'. We've compared tickets from all major online travel agents and airlines flying from London Heathrow-San Diego to find the cheapest flights. And with us there are no hidden extras - what you see is what you pay.

  • Flex your dates to find the flight price for your London Heathrow-San Diego flight. If your travel dates are flexible, use Skyscanner's 'Whole month' tool to find the cheapest month, and even day to fly to San Diego from London Heathrow.

  • Set up a Price Alert. You can easily track the price of your flight from London Heathrow to San Diego by creating an alert. Whenever prices go down or up, you'll get a push notification or e-mail to help you get the best flight deal.

  • Look for non-stop flights. Only interested in direct flights between London Heathrow and San Diego ? Make sure to tick 'Direct flights only' when performing a search. If there are flights without stops available, these will appear in the results.

  • Include nearby airports in your search. Widen your search for London Heathrow to San Diego flight deals by selecting the "add nearby airports" option. This will allow you to see flight prices for all the nearest airports at your departure point and your destination and could help you save on your next trip.

  • Find the cheapest Business class flights from London Heathrow to San Diego. Check the difference in price of your London Heathrow-San Diego air ticket when travelling in Economy, Premium economy, Business or First class. Note that not all cabin classes are available on every route or airline.

  • Search for cheap flights when out and about. To get the best flight booking experience regardless of where you are, download our app and search for flight tickets from London Heathrow to San Diego on the go.

Book flight tickets from London Heathrow to San Diego with peace of mind

  • Find flexible flights. Your airline might be offering flexible tickets from London Heathrow to San Diego , which means you won't lose out if your flight has to be changed or cancelled.

  • Add travel cost protection. Avoid travel pitfalls and choose travel cost protection - it's available at the checkout as you book your London Heathrow-San Diego flight with us.

  • Reduce your carbon footprint by selecting a greener flight option. To check whether there are any lower emissions flights available on the route London Heathrow-San Diego , simply check the “only show flights with lower CO₂ emissions” box later on in your search.

Combine your flight to San Diego with hotels and car hire

Once you've secured your flight booking from London Heathrow to San Diego, we will help you discover the best prices and exclusive rates for cheap hotels in San Diego or nearby. And if you're looking for car hire, we've got you covered too. We allow you to compare hundreds of car hire companies in one search and find the best price on car rental in San Diego.

Compare London Heathrow-San Diego tickets with other routes

Not entirely set on flying from London Heathrow to San Diego yet? You can easily browse other destinations by searching flights to 'Everywhere' - this will allow you to find the cheapest place to travel from your chosen departure point in Malaysia or abroad.


Plan the rest of your trip from London to San Diego

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.